Lichens Index 4

Each name links to a page displaying 1 to 35 images. Most of the lichens in the photos are well-identified from voucher specimens, but I have included some whose identity is uncertain; almost all of these are also backed up by voucher specimens. Where something is identified only to a species "group", or is cfr. or sensu lato, I have placed it on the page with that species.

Collema coccophorum (see Enchylium coccophorum) Collema crispum (see Blennothallia crispa) Collema cristatum (see Lathagrium cristatum) Collema curtisporum Collema furfuraceum Collema nigrescens Collema occultatum (see Rostania occultata) Collema polycarpon (see Enchylium polycarpon) Collema pulcellum (= Collema pulchellum in the N.Amer. Checklist) Collema pulchellum Collema subflaccidum Collema tenax (see Enchylium tenax) Collema texanum cfr. Collema undulatum (see Lathagrium undulatum) Collema (in the old sense) (unidentified species)	Crocodia aurata
Collemopsidium halodytes Conotrema urceolatum (see Stictis urceolatum) Cornicularia normoerica Crocodia aurata Crocynia pyxinoides Cryptothecia rubrocincta (see Herpothallon rubrocintum) Cryptothecia striata Cyphelium brachysporum Cyphelium brunneum (see Thelomma brunneum) Cyphelium inquinans (see Acolium inquinans) Cyphelium lucidum (see (Calicium lucidum) Cyphelium pinicola (see (Calicium pinicola) Cyphelium tigillare (see (Calicium tigillare)	Dibaeis baeomyces
Dactylina arctica Dactylina beringica Dactylina ramulosa
Dendriscocaulon intricatulum
Dendrographa alectoroides Dendrographa conformis Dendrographa franciscana Dendrographa leucophaea Dendrographa leucophaea parasitized by the fungus Trimmatostroma dendrographae Dermatocarpon americanum Dermatocarpon dolomiticum cfr. Dermatocarpon intestiniforme Dermatocarpon luridum Dermatocarpon miniatum Dermatocarpon muhlenbergii Dermatocarpon reticulatum Dermatocarpon rivulorum Dermatocarpon taminium cfr. Dermatocarpon (unidentified species) Dibaeis baeomyces Dimelaena californica (see Monerolechia californica in Lichen Index 8) Dimelaena oreina Dimelaena radiata Dimelaena thysanota Dimerella lutea (see Coenogonium luteum)	Dirinaria confusa
Diploicia canescens Diploschistes aeneus Diploschistes diacapsis Diploschistes muscorum Diploschistes scruposus Diploschistes (unidentified species) Diplotomma epipolium (this is now either D. venustum or D. alboatrum, pending re-examination of the specimens) Diplotomma penichrum Diplotomma venustum Dirina catalinariae Dirina mexicana (not in N. American Checklist; probably not reported north of Mexico) Dirinaria aegialita Dirinaria applanata Dirinaria confluens Dirinaria confusa Dirinaria picta Dirinaria purpurescens Dolichousnea longissima Dyplolabia afzelii	Dolichousnea longissima